16
•
Cuts or cracks on the rubber
•
Presence and integrity of the gasket on the threaded
connector
•
Presence and integrity of the inhalation and exhalation
valves
•
Hand pull the head harness and check integrity
Static seal test in negative pressure (3) and in positive pressure
by the user
X
X
Tightness test with test equipment
X (1)
X
Replacement of inhalation gasket, head harness and other
gaskets
X
Replacement of inhalation and exhalation valves
X
Check of the thread of the connector with plug gage
X
Legenda:
(1)
Even in absence of use, unless it has been stored in airtight package.
(2)
Only if exposed to heat sources
(3)
The test consists in checking that are not noticed leakages through the mask after donning it, closing the inhalation inlet
with the palm of the hand and building a negative pressure by attempting to inhale.
7.2.
Cleaning
The mask must be cleaned every time it is used. Lack of cleaning, besides hygienic problems, can also jeopardize
the correct functioning of the device. Washing can be performed in a traditional way by dipping in water, or by
ultrasonic washing. In both cases, depending on the need to perform a deep cleaning of the mask due to its
conditions, it can be disassembled and all the components can be cleaned separately.
Il lavaggio a ultrasuoni deve essere svolto con macchinari SONOREX SUPER RK514BH o RK1028CH che possono
essere forniti dalla D.P.I. s.r.
l.. L’utilizzo di macchinari diversi può pregiudicare il funzionamento della maschera.
Ultrasonic washing has to be done with SONOREX SUPER RK514BH equipment or RK1028CH which can be
supplied by D.P.I. s.r.l.. Using different equipment can damage the correct functioning of the masks. Ultrasonic
washing temperature must be set at a temperature not higher than 40°C using a mild detergent 5% dilution in
water. Traditional washing can be performed with tepid water and a mild detergent 5% dilution in water. In any
case, never use solvents! After cleaning it thoroughly, rinse under running water and hung up to dry in open air,
avoid in any case exposure to direct solar radiation, or in special cupboards. During drying pay attention not to
expose the mask to direct contact with hot parts or with hot air (warmer than 45°C) or to direct solar radiation
in order to avoid damages to rubber parts. Check that after cleaning operations no traces of detergent are left
otherwise repeat rinsing and drying. If the mask has been disassembled for washing, a leak tightness test with
test equipment has to be performed. If the mask has been exposed to chemicals particularly toxic, biological or
radioactive agents, maintenance has to be performed by specialized personnel or by D.P.I. s.r.l. Maintenance and
Assistance Service.
7.3.
Disinfection
Mask disinfection is necessary when it is worn by different users in order to prevent hygienic or sanitary
problems. Disinfection can be performed in a container after cleaning or can be performed by the equipment
SONOREX SUPER RK514BH or RK1028CH which can be supplied by D.P.I. s.r.l.. Keep in mind that detergent and
disinfecting agent neutralize each other when used at the same time, therefore baths have to be kept separate
washing carefully the container among the two. Disinfection can be performed only with authorized detergent
5% diluted in water. At the end rinse in running water and dry with the same precautions as of paragraph 7.2
Warning:
for the cleaning and disinfection don’t use
solvents (like acetone and alcohol) or abrasive substances.
Follow only the procedure described in the two previous points and use only the indicated detergent and
disinfectants. Detergents, dosages and exposure times other than those indicated, could damage the mask.
The detergents not diluted can cause damages
to the user’s health.
Then using with care wearing glasses and
gloves.
8.
Tightness test with test equipment
In the event the mask has been disassembled in order to be cleaned or to have some component parts replaced,
a tightness test must be carried out. Before carrying out the tightness test, make a visual check. Check valves,
housing and rubber gasket in particular, in order to make sure they are clean. Defective parts must be replaced.
Mask which failed the tightness test cannot be used.
